Hi,
I wonder if it would be possible to calculate the approximate length of a cable from a few know values? I work at a water treatment plant as a controls and instrumentation engineer (not an electrician) and have a panel that i cant for the life of me find out where it is fed from. The incoming cable is 4mm2 SWA presumably a mix of buried and in conduit underground, and is live. I have measure 253.5V to earth and 253V to neutral. This is ok as the panel has a local isolator so i can do the modifications that i need to do inside the panel, however for future reference i really need to know where the power is fed from. I'm hoping we can work out the approximate length of the cable to give me some more ideas of where to look. Currently there is only 1 flow meter in the panel and is pulling a load of appox 0.7A. I'm not hoping for too much, just a rough length.
TL;dr
Is it possible to calculate approx length of 4mm2 SWA with a measured voltage of 253V and of load of about 0.7A
I wonder if it would be possible to calculate the approximate length of a cable from a few know values? I work at a water treatment plant as a controls and instrumentation engineer (not an electrician) and have a panel that i cant for the life of me find out where it is fed from. The incoming cable is 4mm2 SWA presumably a mix of buried and in conduit underground, and is live. I have measure 253.5V to earth and 253V to neutral. This is ok as the panel has a local isolator so i can do the modifications that i need to do inside the panel, however for future reference i really need to know where the power is fed from. I'm hoping we can work out the approximate length of the cable to give me some more ideas of where to look. Currently there is only 1 flow meter in the panel and is pulling a load of appox 0.7A. I'm not hoping for too much, just a rough length.
TL;dr
Is it possible to calculate approx length of 4mm2 SWA with a measured voltage of 253V and of load of about 0.7A